org.da.sparqlhelper.sparql.model

Class Filter

java.lang.Object

org.da.sparqlhelper.sparql.model.AbstractSparqlElement

org.da.sparqlhelper.sparql.model.ExpressionList

org.da.sparqlhelper.sparql.model.Filter

All Implemented Interfaces:

IndentableElement, SparqlElement

public class Filter
extends ExpressionList
implements SparqlElement, IndentableElement

Represent a FILTER or HAVING construct.

Field Summary

Fields inherited from class org.da.sparqlhelper.sparql.model.ExpressionList

expressions, request

Method Summary

Modifier and Type	Method and Description
void	addExpression(Expression expression) Add an expression with the default AND operator.
void	addExpression(Expression expression, short operator) Add an expression.
boolean	checkValidity() Check the validity of the FILTER expression.
boolean	equals(java.lang.Object obj)
java.lang.String	getClauseTypeAsString() Return the clause type as a String.
GroupForm	getGroupForm() Return the parent group form.
int	getIndex() Return the index of the filter.
java.util.Set<java.lang.String>	getInputVariables() Return the input variables.
int	getLevel() Return the level of the BIND.
int	hashCode()
boolean	isFilter() Return true if this is a FILTER clause.
boolean	isHaving() Return true if this is a HAVING clause.

Methods inherited from class org.da.sparqlhelper.sparql.model.ExpressionList

createLiteral, createLiteral, createVariable, getExpressions

Methods inherited from class org.da.sparqlhelper.sparql.model.AbstractSparqlElement

getComment, hasComment, setComment

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.da.sparqlhelper.sparql.model.SparqlElement

getComment, hasComment, setComment

Methods inherited from interface org.da.sparqlhelper.sparql.model.IndentableElement

indent, indentMore, indentParent

Method Detail

isHaving

public boolean isHaving()

Return true if this is a HAVING clause.

Returns:

true if this is a HAVING clause

isFilter

public boolean isFilter()

Return true if this is a FILTER clause.

Returns:

true if this is a FILTER clause

getClauseTypeAsString

public java.lang.String getClauseTypeAsString()

Return the clause type as a String.

Returns:

the clause type as a String

getIndex

public int getIndex()

Return the index of the filter. The unicity of FILTER indexes in the SPARQL request model is guaranteed.

Returns:

the index

getLevel

public int getLevel()

Return the level of the BIND.

Specified by:

getLevel in interface IndentableElement

Returns:

the level of the BIND

getGroupForm

public GroupForm getGroupForm()

Return the parent group form.

Returns:

the parent group form

getInputVariables

public java.util.Set<java.lang.String> getInputVariables()

Return the input variables.

Returns:

the input variables

addExpression

public void addExpression(Expression expression,
                          short operator)

Add an expression.

Parameters:

expression - the expression

operator - the operator

addExpression

public void addExpression(Expression expression)

Add an expression with the default AND operator.

Parameters:

expression - the expression

checkValidity

public boolean checkValidity()

Check the validity of the FILTER expression.

Specified by:

checkValidity in class ExpressionList

Returns:

true if the FILTER expression is valid

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object